Riad Hijab, the head of the Western-backed Syrian opposition's High Negotiations Committee, will also take part in the meeting.

French Foreign Minister Jean-Mac Ayrault also plans a working dinner with U.S. Secretary of State John Kerry.

The ministry has condemned the airstrikes on camps for displaced people in Syria that left at least 28 people dead, including women and children, saying the bombings "could be constitutive of a war crime and a crime against humanity."